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Simplifying
2x2 + 18 = 100
Reorder the terms:
18 + 2x2 = 100
Solving
18 + 2x2 = 100
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-18' to each side of the equation.
18 + -18 + 2x2 = 100 + -18
Combine like terms: 18 + -18 = 0
0 + 2x2 = 100 + -18
2x2 = 100 + -18
Combine like terms: 100 + -18 = 82
2x2 = 82
Divide each side by '2'.
x2 = 41
Simplifying
x2 = 41
Take the square root of each side:
x = {-6.403124237, 6.403124237}
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